DK Eyewitness Books, Crystal & Gem by R.R. Harding

Includes index

What is a crystal? -- World of crystals -- Natural beauty -- Crystals--outside ... -- ... and inside -- Color of crystals -- Identification -- Natural growth -- Good habits -- Discovery--recovery -- Growing from seed -- Crystals at work -- Good vibrations -- Quartz -- Diamond -- Corundum -- Beryl -- Opal -- Other gemstones -- Collectors' items -- Stones for carving -- Precious metals -- Animal and vegetable -- What is it worth? -- Making them sparkle -- Lore and legends -- Crystals at home -- Did you know? -- Identifying gemstones -- Find out more -- Glossary -- Index

Describes the seven basic shapes of crystals and other aspects of crystallography, including how they form in nature and how crystals are studied and identified

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